A powerful new ad is going viral. The company under Armour is probably best phone for commercials featuring football players, but now it is using a ballerina to show women can do everything. Deborah Roberts has the story. Reporter:. Thank you for your application. Unfortunately, you have not been accepted. Reporter: When it comes to female empower. This ad isn't dancing around the issue. You have the wrong body for ballet. Reporter: In a brand-new much buzzed about campaign from under Armour, misty Copeland, a soloist with the prestigious American ballet theatre takes center stage while a young girl's voice reads actual rejection letters she received while starting out. And at 13, you are too old to be considered. Reporter: The ad part of under Armour's I will what I want campaign which features female athletes and their stories of strength against the odds. Copeland seen here in this exclusive behind-the-scenes footage. Being a part of the I will what I want campaign for under Armour is so much bigger than myself as an individual. Reporter: People are getting the message. So far more than 3.5 million views on youtube. Under Armour's not alone with campaigns telling women to grab the reins from pantene. Sorry, not sorry. Reporter: To always -- Show me what it looks like to run like a girl. Reporter: To verizon. Encourage her love of science and technology. They are realizing these are resonating with women and going viral and a lot are picking up on it and continuing the trend. Reporter: And under Armour is now going over the top taking a leading role in promoting fierce females. In misty Copeland they found the perfect pitch woman. Raised by a struggling single mom she overcame a tough childhood to take the ballet world by storm. Twirling into history as only the second ever black female soloist at American ballet theatre. It was either my skin color, I just didn't fit in, was too short and I willed myself here. Wow, what a woman. We're all sitting here with our mouths open. You may have noticed that the race is not actually mentioned in this ad but misty Copeland says it is clearly something she has had to overcome in the world of ballet and something she has lucked over too. So gracefully. So beautifully. She is just stunning. I've seen her dance and, wow.

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American Ballet Theatre dancer recalls family 'barely scraping by' when she was a child.

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